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Finding the Fourth Proportional to 5,541.85, 8,322.69 and 5,318.89

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Solution

The fourth proportional to 5,541.85, 8,322.69 and 5,318.89 is: 7,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.85 : 8,322.69 = 5,318.89 : x
  2. Step 2: Convert to fraction form
    5,541.85/8,322.69 = 5,318.89/x
  3. Step 3: Cross multiply
    5,541.85x = 8,322.69 × 5,318.89
  4. Step 4: Simplify right side
    5,541.85x = 44,267,471.75
  5. Step 5: Solve for x
    x = 44,267,471.75/5,541.85
  6. Step 6: Final answer
    x = 7,987.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.